The controller is the AAA-UDMA, a four-channel UDMA/66 RAID controller supporting up to four hard drives in RAID 0, RAID 1, RAID 0/1, and RAID 5 configurations.
Now let's take a look at the controller's RAID 1 performance:
These results aren't bad at all. The read performance is, at worst, the same as that of the single-drive RAID 0. As expected, the write performance was lower, although sometimes significantly lower. Still, this is about what I'd expect from a RAID 1 array. Next, let's see how the RAID 0/1 array performed:
These are definitely another set of disappointing
results. The ideal RAID 0/1 array should be a little slower than the ideal
two-drive RAID 0 array. This one is, at best, as fast as a single drive, and is
in many cases slower. It looks like you'd do better by using two RAID 1 arrays
instead of a RAID 0/1 array, unless you really need a single huge volume for
storage.
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